Oil Air Slip Crystalizer for Aluminum Billet Casting

The oil-air slip crystallizer is a core component for modern hot-top semi-continuous aluminum billet casting. This advanced system features independent oil and air channels that deliver precisely metered lubricant and compressed air through porous graphite rings.

This creates a stable oil-air film between molten aluminum and the inner mould wall, effectively isolating direct metal-graphite contact, lowering primary cooling intensity, and reducing friction during the casting process.

During operation, molten aluminum flows into the crystallizer cavity where it forms a thin initial solid shell under primary cooling. As the billet descends, circulating cooling water performs secondary intensive cooling to ensure complete solidification.

• Independent oil and air channels for precise lubrication control
• Porous graphite rings distribute oil-air mixture evenly
• Stable film formation between aluminum and mould wall
• Two-stage cooling process (primary and secondary)

• Produces billets with ultra-smooth surfaces
• Creates thin segregation layers and uniform grain structure
• Significantly reduces oil consumption
• Minimizes smoke emissions during operation
• Adaptable to multiple aluminum-alloy grades and billet diameters
• Compatible with automatic casting lines
• Stabilizes casting conditions and improves production yield
• Extends service life of graphite accessories